Composite die for shoe parts



Oct. 9, 1934. A W,V ALTVATER 1,976,473

COMPOSITE DIE FOR SHOE PARTS Filed March 12, 1934 2 Sheets-Sheet l Oct. 9, 1934. A.' W, ALTVATER 1,976,473

COMPOSITE DIE FOR SHOE PARTS Filed Marc'h l2, 1954 2 Sheets-Sheet 2 gi/Mn gn Patented Oct. 9, 1934 Umm oFFC

, 1,976,473 i COMPOSITE DE' Fon s'HoE PARTS" Y E Arihurw. Altvater, University oiiy, Mo. Application March 12, 192.4,y serial No. 71.1155 `12 ciaiis. (c1. fc4-) 'Y This invention relates to cutting and ornamenting dies of a type designed and adapted especially for use in operating on parts' for shoe uppers.

v5 An object of this invention is to provide a die assembly which will have means for readily interchanging the die members in order to permit the device being used in making' avariety of different designs. 'i

: V1Q Another object of the invention is to provide va die assembly suitable for making cut-outs for ventilated shoe uppers With-the dies in sections to permit the same die assembly being'used for a number or" different designs.

vAnother objectV of the invention is to provide improved securing means in a die ofvthis character whereby a unitary device mayl secure a number of different die elements firmly in' position. f

"A26 Another object of the invention Vis to provide improved gaging and'clamping'rmeans for a die assembly of the class described. A

Other and specicv objects will' be apparent 4 from the following detail description,taken in V425 connection with the accompanying drawings, in

whichc Fig. 1 is a' plan View of the'die assembly; Fig. 2 is an inverted plan view; i H Fig. 3 is a plan view of the die assembly with '3e the gage member removed and the stripper plate lifted; y

Fig. 4 is a plan view similar clamping plate removed; Fig. 5 is a plan view similar toY Fig. '3 with me to Figs.` 3 and' 4,

35 with the'die elements removed and' partly in section to illustrate the unitary securing member; Fig. 6 is a planview of a gage member; Y i Fig. '7l is'an elevationof the gage member shown Il'Fg; 1 Y 4 Fig. 8 villustrates the several die elementsby plan views thereof; Fig. 9 is a rear elevation of theV die assembly; Fig. 10 is a vertical section on line'10'.10", Fig. 1;' Y y Fig.` 11 4is a vertical sectionl on line'` 11-11, Fig.4; f ,l fFig. 12' is a vertical section on line' 12-1'2", Fig. l;

Fig. 13 is veriieai secii'ii through 'a' die eie- *5'0 ment;

f A plurality of die-members, 1, 2,314, 5,6' ma 7',

each include upstanding cutting or marking edges, and areA supported on a base plate 8. Different numbersand designs of such die members-may', of course, be used. Spacing means, which will be more particularly described herein, are provided to position the die Ymerribers with respect tothe base plate. A hold-down plate 9, having' appropria'te openings 10, through which the cutting or marking members extend, is placed over the die members, the' plate engaging the top surface 'of 65 the bases of the die elements. Downwardly extending posts 11, secured to the hold-down plate 9, are adapted to be engaged by a reciprocating bail member 12, as best shown' in Fig. 12.

A stripper plate 13V is secured by hinges 14 to 70 the die assembly'in a'manner whichv will be later described in detail, but. in such a fashion as to permitthe stripper plateto' be lifted for access't the hold-down plate and the die elements for their i i placement and removal; Ag'age and clamp 15 75 is removably positioned withthe assembly, thus providing access for the placement and removal of the die elements.

It will be' apparent from this preliminaryfdei scription that a plurality of different selected die del'ements'nfiay be used with the die assembly, that unitary means are provided for securing such ele.- r'r'ientsl firmly in position, and that means are provided for the ready placement and removal of'v A different "sel'e'cteddie elements; The particular 85y construction, of the 'several elements and their operation will be apparent from amore' detailed description which follows. i v

c The base plate'4 has usual openings 16 through c which may pass' cuttings severed by the 'die 4ele- 90 merits. Sockets 17 are formed' in the base plate to receive dowel pins 18 secured to and extending d'ownw'ardlyv from bases 19` of the die members. Thus thel sockets 17 and the-dowel pins 18 proi vide spacing meansbetw'een'tl'ie die members and 95 the b ase plate y8. Parallel longitudinalslots 20 are formed lin the base plate 8 to accommodate Ythe legs 21' vof the bail member 12. Fastening plates 22 lare secured by screws 23 to the base plate 8 and hold :the bail' member 12 inv position. o

A'handl'e member 24is secured tothe rear edge of the' base plate 8i by lscrews 25 and provides lnieans .'fo'r carrying the die assemblyas wellas ids Lon; l

adapted.

gitudinal slots 27 are continuations respectively of the holes 26 and accommodate the reduced portions 28 of the posts 1l, as shown in Fig. 12. It may be understood that the plate 9 is placed over the die members resting upon the top surface of the bases of the die elements; the bail member 12 is withdrawn to its outmost position; theposts 11 register with and pass through the holes 26 in the legs 21 of the-bailmember; and then the-bail member' 12 is forced forwardly`,-With the reduced portions 28Y of theposts 11 clamped in the slots 27 of the bail member. end of each leg 21 of the bail 12 is tapered to pro.-

vide for drawing the post 11 downwardly to clamp.. It will be seen that the hold-down plate clampsng, 0rVr the parts in position, as shownfin Fig. 12'.

more, or all of the die members in position.'

The movement of the bail member 12 is l im, ited by pins 29, secured to the base 8 and positioned in slots 30 cut in the legs 21 of the bail member. Thus, when the bail member is with- .drawn the pins 29 serve to bringthe holes 26 into proper registry to receive the posts 11. The diemembers 5 have appropriate'holes 31 to permit the passage of the posts 11 through the bases of the die members. v

The dies may be of anyspecific form but the details of a specific die are shown in Fig. 13'. As specically shown, they comprise a pair of base plates 32 in which is secured'the cutting tubes 33. While the device as specicallyl illustrated includes a plurality of dies for formingthe Vamps of so-called ventilated shoes, and all of the cutting members are identical, constituting merely a plurality of tubes 33, it will be understood'that dies of any particular conformity maybe used with the principal invention herein disclosed. Such dies may have cutting edgesor embossing surfaces. 1t will be obvious, of course, that this invention has particular utility in connection with the manufacture 'of so-called ventilated shoes wherebyfa plurality of styles may be executed With one set of dies.

Inactual practice the die 'members are numbered as shown on the drawings. A chart is furnished with the assembly indicating theparticular die member or members required to produce the dilerent styles'fonwhich the assemblyfis Resiliently supported posts 34, 'shown in detail in Fig. 14, form resilient supports for the free end of the stripper plate 13 and kone "or more of them, four as specifically showninFig. '3, function as guides for the hold-down plate-'9,' the hold-down platee being providedwith appropriate holes for their passagefas best shown' in Fig. 11.

. The specinc construction and arrangement of the posts34 will be understood by reference to Fig. 14. The posts comprise cylindrically shaped membersv having outwardly extending circumferential flanges 35 which bear against the bottom ofthe fastening plates 22." An vexpansion spring 36 has its lower end resting in the bottom of a well 37 of the base 8 and its upper end pressing against `the inner surface of the post 34.' The stripper plate 13 is secured' by hinges 14 to a resiliently supported table 40 positioned at the rear of the base 8. Downwardly extending pins 41 are secured to th'etable v40and pass through appropriate holes'infthebase 8, as best shown in Fig. 10. /Upwardly extending sockets 42 l are formed'in thebottom'of the ,base` 8 concentric with the pinsV 41` and accommodateheads 43 von the pins. Spiral Vsprings 44 are 'positioned The forward" about the pins 41 and press on the bottom of the table 40 keeping it normally in extended position so that the heads 43 of the pins 41 engage the top of the sockets 42.

It will thus be seen that the stripper plate is resiliently supported; it being attached at its rear edge to a resiliently supported table 40 and it resting on resiliently supported posts 34 near rits front edge.' y, f Y:

The gage plate 15 is removably attached tothe table 40 and may serve either as a gage or clamp, orb'th",` for the work.V Its outer edge 45, or an i internal edge 46,may conform to a portion of the work as desired.

krThe gage plate 15 has downwardly extending yClo/ wel pins 47. passing through appropriate holes in the table 40 against the ends `of leaf springs ..48 vsecured-to theybottom surface,l as shown in- Figs.` 9, 10 and l5.

` A'post 49 extends downwardly also from theV bottom `of the gage plate 15, is adapted to extend throughra rotating collar and has a cross p inV ladapted to be engaged by a' Icamsurface on the bottom of the collar 50. The'collar`f50 extends throughand is mounted for., rotation in the table 40, itl being held in position byy plates 52. A lever 53 is secured tothe Vcollarofor its rotation. A slot 54 is cut inthe collar 50 to accommodate the cross pin 51 and provides means whereby the gage plate l5 maybe readily placed in and removed from the tableiofv The lcam surface yon the bottom of the collar,50 is such that it has two positions'of rest, one'wherein the gage plate 15 is spaced slightly above the table40 andthe stripper plate 1 3,V and the second in which it fis brought to clamping position against them.

The arrang'emen't of the gage plate 15issuch that it may be readily removed from the assemblyto permit lifting of the stripper plate 13 on its hinges, thus providing freeaccess for changing the die elements. By y. the first movement of the lever 5?, after the plate 15 is in position, the gage plate 15 isfbrought to an initial adjustment in which, if desired, a portion of the work may be slid between the bottom ofthe plate 15 and the top of the stripper plate 15, to engage an overlying portion ofthe workV in a manner which is understood in the art. movement of the lever 53 the plate 15 may be lowered'with respect to the table 40 and thus brought into-clamping position to hold the work secure duringthe subsequent operation.

From the foregoing Vdescription and construction and operation of the die assembly will be obvious andits' advantages will be apparent. Means have. been provided whereby a plurality ofdie elements maybe secured to a base in order that'a single die assembly may be used to execute a number of different designs. A singlev unitary fasteningmeans has been provided whereby one or more, or all, of such die elements may be secured Qtofthe base.' A' combined stripperfplate and gage has'beenprovided which is nevertheless removable foreasy Vaccess to the .die elements; which 'will serve to gage the workjby either any v.external or internal edge, and :which will also Aserve asa clamping member 'for' the work` to `secure it fixed position during'the Astamping operationv4 By a second Various changes have been suggested above-but claims, without departing from the spirit of this invention.

I claim:

1. A die assembly of the character described including a base, a die member supported by the base and including a base plate and die elements extending from and supported by said plate, a hold-down plate having openings to accommodate the die elements of said die member, and unitary means associated with said base to clamp said hold-down plate in position and thereby secure the die member with respect to the base.V

2. A die assembly of the character described including a base, a die member supported by the base, means for locating said member in proper position on the base, a hold-down plate adapted to bear against a portion of said member, and a slide associated with the base and adapted to engage a downwardly extending part of said plate to latch the plate in position.

3. A die assembly of the character described including a base, a plurality of die members, means for locating said die members in proper position on the base, and unitary means for releasably securing any one or more of said members to the base.

4. A die assembly of the character described including a base, a plurality of die members of such conformity that a number of dierent designs may be performed by using all or only some of said die members, means for spacing said die members on the base, and unitary means for releasably securing any part or all of said members to the base.

5. In a die assembly of the character described having a base and a die member including a base plate and upstanding die elements, the combination including a hold-down plate adapted to engage said base plate, a lug secured to said holddown plate and extending toward said base, and a reciprocating latch member on said base and adapted to engage said lug 6. In a die assembly of the character described having a base and a plurality of die members removable from said base, the combination including a stripper plate, a resiliently supported table on one side ofthe base in the normal plane of the stripper plate and adapted to removably support a gage device, and hinges securing the stripper plate to said table.

'7. In a die assembly of the character described having a base and a plurality of die members removable from said base, the combination including a stripper plate, a resiliently supported table on one side of the base in the normal plane of the stripper plate and adapted to removably support a gage device, hinges securing the stripper plate to said table, and resilient supports extending from the base to support a part of the stripper plate opposite said hinges.

8. In a die assembly of the character described having a base and a plurality of die members removable from said base, the combination including a stripper plate, a resiliently supported table on one side of the base, hinges securing the stripper plate to said table, and a gage plate removably supported by the table.

9. In a die assembly having a base, a die member supported by the base, and a table resiliently supported by the base, the improvement comprising a combined clamp and gage on the table including a plate and a cam member adapted to move the plate to one position in which theplate is spaced above the table to permit a portion of the work to be inserted between the plate and the table and adapted to move the plate to a lower position in which the plate clamps the work inserted between the table and the plate.

10. In a die assembly having a base, a die member supported by the base, and atable resiliently supported by the base, the improvement comprising a combined clamp and gage on the table lncluding a plate, a pin extending downwardly from the plate, a collar for the pin revolvably mounted in the table, and a cross-head on the pin adapted to cooperate with a cam surface on the lower face of the collar.

11. In a die assembly having a base, a die member supported by the base, and a table resiliently 11@ supported by the base, the improvement comprising a combined clamp and gage on the table v including a plate, a pin extending downwardly from the plate, a collar for the pin revolvably mounted in the table, and a cross-head on the pin adapted to pass through a slot in the collar and to cooperate with a cam surface on the lower endV of the collar.

12. A die assembly of the character described including a base, one or more die members having upstanding die elements, one or more elements depending from said members, said base having means to accommodate a plurality of said depending elements for locating said members inv proper position on the base, and unitary means y ARTHUR W. ALTVATER. 

